curl: 33: CONNECT_ONLY raw I/O selects wrong connection after CURLOPT_SHARE detach (incomplete fix for CVE-2020-8231)

Summary After a completed CURLOPTCONNECTONLY transfer, detaching the shared connection pool via curleasysetopteasy, CURLOPTSHARE, NULL causes curleasysend / curleasyrecv to silently operate on an unrelated connection from a different pool. Data intended for server B is sent to server A, and A's...

AZL-97719 CVE-2026-80578 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: fbdev: core: Fix pointer desynchronization in fbioread In fbioread, if copytouser performs a partial copy e.g., due to a faulty user buffer, the loop adjusts the chunk size 'c' and updates the remaining 'count'. However, the...

CVE-2026-80548

In the Linux kernel, the following vulnerability has been resolved: s390/vfioccw: Selectively expand iomutex The iomutex was defined to serialize the ioregions, but then has also sort of been associated with the I/O themselves because of the close relationship they share. With the handful of race...

CVE-2026-80538

In the Linux kernel, the following vulnerability has been resolved: xfs: propagate errors from xfsrtginodeload xfsrtginodeensure treats every xfsrtginodeload error other than -ENOENT as success. This can leave the realtime group inode unset after an I/O, allocation, or corruption error. Growfs th...

UBUNTU-CVE-2026-80538

In the Linux kernel, the following vulnerability has been resolved: xfs: propagate errors from xfsrtginodeload xfsrtginodeensure treats every xfsrtginodeload error other than -ENOENT as success. This can leave the realtime group inode unset after an I/O, allocation, or corruption error. Growfs th...

CVE-2026-80578

CVE-2026-80578 affects the Linux kernel's fbdev (framebuffer device) subsystem , specifically the fb_io_read() function in the fbdev core. The root cause is a pointer desynchronization : when copy_to_user() performs a partial copy, the hardware src pointer has already been advanced by the full ch...

PT-2026-82164

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the s390/vfio ccw component. The io mutex was originally intended to serialize io regions but became associated with I/O operations due to their close...

PT-2026-82194

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the fb io read function where a pointer desynchronization occurs if copy to user performs a partial copy, such as when a user buffer is faulty. In this scenario, the...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098768)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098768 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Don't recheck L1 intercepts when completing userspace I/O When completing emulation of...

CVE-2026-80578: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: fbdev: core: Fix pointer desynchronization in fbioread In fbioread, if copytouser performs a partial copy e.g., due to a faulty user buffer, the loop adjusts the chunk size 'c' and updates the remaining 'count'. However, the...

CVE-2026-80578: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: fbdev: core: Fix pointer desynchronization in fbioread In fbioread, if copytouser performs a partial copy e.g., due to a faulty user buffer, the loop adjusts the chunk size 'c' and updates the remaining 'count'. However, the...

Linux Distros Unpatched Vulnerability : CVE-2026-80578

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fbdev: core: Fix pointer desynchronization in fbioread In fbioread, if copytouser performs a partial copy e.g., due to a faulty user buffer, the loop adjusts th...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-104601)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-104601 advisory. In the Linux kernel, the following vulnerability has been resolved: tpm: Make the TPM character devices non-seekable The TPM character devices expose a sequential...

The vulnerability of the f81604_read_int_callback() function in the drivers/crypto/ccp/sev-dev-tsm.c file of the Linux kernel cryptographic accelerator driver allows a attacker to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the f81604readintcallback function in the drivers/crypto/ccp/sev-dev-tsm.c file of the Linux kernel cryptographic accelerator driver is related to improper memory release memory leak. Exploiting this vulnerability could allow an attacker to compromise the confidentiality,...

The vulnerability of the iomap_read_folio_iter() function in the fs/iomap/buffered-io.c file of the Iomap file system in the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the iomapreadfolioiter function in the fs/iomap/buffered-io.c file of the Iomap file system in the Linux operating system is related to the occurrence of operations outside the buffer in memory. Exploiting this vulnerability could allow a remote attacker to compromise the...

kernel: KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O

A flaw was found in the Kernel-based Virtual Machine KVM for x86. This vulnerability occurs when KVM incorrectly re-checks Level 1 L1 intercepts during the completion of userspace I/O emulation for a Level 2 L2 instruction. If the L1 or host userspace modifies I/O interception settings during thi...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: KVM: x86: Cancel the delayed EOI handling of the I/O APIC before destroying vCPUs. Cancel and flush the delayed EOI handling of the I/O APIC during the “pre-VM-destroy” phase, before vCPUs are destroyed. Processing the EOI...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: - scsi:mpi3mr: Fixed a potential deadlock in mpi3mrfaultueventemit. mpi3mrfaultueventemit is executed from the fault watchdog and reset paths, where host I/O might already be blocked. Allocation operations using GFPKERNEL both...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: scsi: elx: efct: Fixed an I/O leak on unsupported additional CDBs. The efctdispatchfcpcmd function allocates an efctio before dispatching an unsolicited FCP command. If the command involves a supported additional CDB, the functio...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed a race condition between direct IO writes and fsync operations when using the same file descriptor. If we have two threads that use the same file descriptor, and one of them performs direct IO writes while the other...